3 years ago

Joe drove 530 miles in hours 15 minutes. What was his average speed pee hour?

Mathematics

1 answer:

scZoUnD [109]3 years ago

4 0

530 divided by 15 is 35.3

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If the first number is increased by 7 and the second number is reduced by 6 times, the sum of these numbers is 29.

Marta_Voda [28]

Answer:

First number = 20

Second number = 12

Explanation:

Let the 1st number be x

Let the 2nd number be y

=====================

Condition 1

$\sf \rightarrow x + 7 + \dfrac{y}{6} = 29$

$\rightarrow \sf x=-\dfrac{y}{6}+22$

=====================

Condition 2

$\rightarrow \sf 2y - (x - 5) = 9$

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Substitute equations

$\rightarrow \sf -\dfrac{y}{6}+22 = 2y-4$

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$\rightarrow \sf x = 2y - 4$

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2 years ago

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3 years ago

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